WO2022028189A1

WO2022028189A1 - Screen projection method and apparatus, electronic device, and computer readable storage medium

Info

Publication number: WO2022028189A1
Application number: PCT/CN2021/104752
Authority: WO
Inventors: 朱云龙
Original assignee: 中兴通讯股份有限公司
Priority date: 2020-08-05
Filing date: 2021-07-06
Publication date: 2022-02-10
Also published as: EP4180942A1; CN114077409A; JP2023527393A; US20230333800A1; KR20220162775A

Abstract

A screen projection method, a screen projection apparatus, an electronic device, and a computer readable storage medium. The screen projection method comprises: sending a search file to search a client, the search file comprising a device identifier of a server and configuration parameters of the server, and the configuration parameters of the server comprising parameters for selecting a target client; receiving a search response message returned by the client, the search response message comprising a device identifier and device parameters of the client; determining, according to the search response message, a target client meeting a screen projection condition; and sending a screen projection file to the target client.

Description

Screen projection method and apparatus, electronic device and computer-readable storage medium

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority of Chinese patent application No. 202010777220.0 filed on August 5, 2020, the contents of which are incorporated herein by reference in their entirety.

technical field

The present disclosure relates to the technical fields of the Internet and smart terminals, and in particular, to a screen projection method and apparatus, an electronic device, and a computer-readable storage medium.

Background technique

Screencasting refers to casting media files from one device to other devices for playback/display. For example, the video or picture on the current mobile phone is placed on another mobile phone, computer or smart TV for playback/display, and the user can watch the video or picture on the current mobile phone on the other mobile phone, computer or smart TV.

The current screencasting relies on the establishment of a connection between the server and the client to transmit video or pictures. During the transmission of the video stream, the transmission parameters are parsed, and there may be some screencasting display problems; in addition, it is also possible that the client is not necessarily The problem with the screen cast object, that is, the device that does not need to accept the screen cast also receives the screen cast file, which will lead to a waste of network resources.

SUMMARY OF THE INVENTION

In a first aspect, an embodiment of the present disclosure provides a screen projection method, which includes: sending a search file to search for a client; the search file includes a randomly generated device identifier of a server and configuration parameters of the server, the configuration parameters of the server Including parameters for selecting a target client; receiving a search response message returned by the client; the search response message including the client's device identifier and device parameters; determining the target client that meets the screen projection conditions according to the search response message and sending the screen projection file to the target client.

In a second aspect, an embodiment of the present disclosure provides a screen projection method, including: monitoring a search file sent by a server; the search file includes a randomly generated device identifier of the server and configuration parameters of the server, and the configuration parameters of the server include parameters for selecting a target client; when a search file is monitored, a search response message is generated based on the search file and returned to the server, the search response message including the client's device identification and device parameters; and receiving The screen projection file sent by the server.

In a third aspect, an embodiment of the present disclosure provides a screen projection device, including: a server sending module configured to send the search file to the outside to search for a client; the search file includes a randomly generated device identifier and service of the server The configuration parameters of the server end, the configuration parameters of the server end include parameters used to select the target client; the server receiving module is configured to receive the search response message returned by the client; the search response message includes the device identifier of the client and device parameters; and a server determination module configured to determine a target client that satisfies the screen projection condition according to the search response message; the server sending module is further configured to send a screen projection file to the target client.

In a fourth aspect, an embodiment of the present disclosure provides a screen projection device, including: a client receiving module configured to receive a search file sent by a server; the search file includes a randomly generated device identifier of the server and configuration parameters of the server, The configuration parameters of the server include parameters for selecting a target client; and a client sending module is configured to return a search response message to the server; the search response message includes the client's device identifier and device parameters; The client receiving module is further configured to receive the screen projection file sent by the server.

In a fifth aspect, an embodiment of the present disclosure provides an electronic device, including:

one or more processors;

a memory, on which one or more computer programs are stored, when the one or more computer programs are executed by the one or more processors, the one or more processors implement the aforementioned screen projection method; as well as

One or more I/O interfaces, connected between the processor and the memory, are configured to implement information interaction between the processor and the memory.

In a sixth aspect, an embodiment of the present disclosure provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, implements the foregoing screen projection method.

Description of drawings

FIG. 1 is a flowchart of a screen projection method according to an embodiment of the present disclosure;

FIG. 2 is a flowchart of a screen projection method provided by an embodiment of the present disclosure;

3 is a schematic block diagram of a screen projection device provided by an embodiment of the present disclosure;

4 is a schematic block diagram of a screen projection device provided by an embodiment of the present disclosure;

FIG. 5 is a flowchart of a screen projection method according to an embodiment of the present disclosure; and

FIG. 6 is a schematic block diagram of an electronic device according to an embodiment of the present disclosure.

detailed description

In order to make those skilled in the art better understand the technical solutions of the present disclosure, the screen projection method and device, electronic device, and computer-readable storage medium provided by the present disclosure are described in detail below with reference to the accompanying drawings.

Example embodiments are described more fully hereinafter with reference to the accompanying drawings, but which may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The terminology used herein is used to describe particular embodiments only and is not intended to limit the present disclosure. As used herein, the singular forms "a" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will also be understood that when the terms "comprising" and/or "made of" are used in this specification, it is specified that particular features, integers, steps, operations, elements and/or components are present, but not excluding the presence or possibility of Add one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art. It will also be understood that terms such as those defined in commonly used dictionaries should be construed as having meanings consistent with their meanings in the context of the related art and this disclosure, and will not be construed as having idealized or over-formal meanings unless This document expressly so limited.

Before screencasting between devices, the server and client need to establish a connection, and then transfer the screencasting file to the client for the client to perform screencasting. Since the configuration file is sent to the client device together with the screencasting file, the server cannot control the client, resulting in some unnecessary clients receiving the screencasting file, wasting network resources.

In the following embodiments, the server may also be referred to as a sender, and the client may also be referred to as a receiver. The server sends the screencast file, and the client receives the screencast file and displays it.

In a first aspect, an embodiment of the present disclosure provides a screen projection method, and the method is applied to a server, that is, a side that provides a screen projection file. FIG. 1 is a flowchart of a screen projection method according to an embodiment of the present disclosure. As shown in FIG. 1 , the screen projection method may include the following steps 101 to 104 .

Step 101, sending a search file to search for a client.

The search file includes the device ID of the server and the configuration parameters of the server. The device ID of the server can be randomly generated, and the configuration parameters of the server include parameters for selecting the target client, that is, the server can select the target client according to the configuration parameters. Of course, in other implementations, the device identifier of the server can be generated according to a preset rule.

In some implementation manners, in order to realize the connection between the server and the client, each needs to generate a device identification ip, and transmit the device identification to each other in the search phase.

In some implementation manners, the server may randomly generate an ip, and the generation method of the ip may adopt an existing manner, which is not limited in the present disclosure. After the server generates an IP, it generates a search file based on the IP and configuration parameters. Configuration parameters can be entered manually or automatically generated in the background.

In some implementations, the configuration parameters may include regional characteristics by which clients can be filtered, clients in a specific region can be excluded, or only clients in a specific region can be selected. For example, if the region feature is set as the region A connection feature, then after the server sends the search file, only the client located in region A can receive the search file and establish a connection with it. In other words, the configuration parameter is equivalent to a screening mechanism, which blocks some clients in advance during the connection establishment phase, so that the network resource occupation can be reduced in the subsequent screen-casting file transfer process.

In some embodiments, a client list can be generated through the configuration parameters of the client, that is, a client list is generated according to the device parameters and device identifiers of the client. The client list can be a list arranged in a preset priority order. The list includes at least one client, and the priority can be set by region. For example, the priority of area A is high, the priority of area B is medium, and the priority of area C is low. In some embodiments, the target client is selected from the client list according to the configuration parameters of the server, and the client with lower priority can be shielded to achieve a differentiated configuration effect and reduce subsequent network resource occupation.

In some embodiments, the server may sort the priorities of the clients according to the device parameters of the clients. For example, set clients that are not suitable for display to low priority and clients that are suitable for display to high priority. Generate a list of clients according to their priority. The server can screen clients during the connection establishment phase, and block clients with lower priority.

In some embodiments, the configuration parameters of the server may include the device type, that is, the device type of the server. The configuration parameters are adjusted according to the device type, and the fixed parameters in the subsequent data interaction process are dynamically added or deleted, and the server actively shields Inappropriate clients, or lower the priority of inappropriate clients, so as to achieve a differentiated configuration effect and reduce subsequent network resource occupation.

In some embodiments, the configuration parameters of the server may include one or more parameters of system version, screen size or resolution. The server can send its own system version, screen size or projection resolution to the client in the search ip stage. The client can determine whether to support the server's projection request according to the system version, and the client can be adjusted according to the screen size and resolution. Displays the screen size and resolution of the device. The system version refers to the version of the operating system, for example, in the case of a mobile phone, the system version may be various versions of the Android system.

It should be noted that the search file may include a device identifier and configuration parameters, the device identifier is the unique identifier of the device corresponding to the server, and the client can determine the server according to the device identifier of the server. The configuration parameters include at least one of screen size, resolution, system version, and regional characteristics.

Step 102: Receive a search response message returned by the client.

The search response message may include the client's device identification and device parameters. The device identifier is the unique identifier of the device used by the client, and the device parameter may include at least one of screen resolution, screen size, and system version.

In some embodiments, after receiving the search file sent by the server, the client identifies the device identifier and configuration parameters of the server, determines whether its own device supports the display of the server, and returns a search response message.

In some embodiments, after the client receives the search file sent by the server, it determines whether its own device supports the display of the screen-casting file, and when it supports the display, it returns to the server a message indicating that the ip match is successful; or, when it does not support the display , and return a message that the ip match failed to the server.

Step 103 , according to the search response message, determine a target client that satisfies the screen projection condition.

In some embodiments, the search response message returned by the client includes a successful matching message or a matching unsuccessful message. When the search response message is a successful matching message, it is determined that the client corresponding to the search response message meets the screen casting conditions. target client. When the search response message is a message that fails to match, it is determined that the client corresponding to the search response message is a client that does not meet the screen casting conditions.

In some embodiments, the server and the client can also implement pre-decoding in the search ip stage according to the mutual system version and device parameters, that is, to agree on a communication method, so as to avoid parsing the configuration parameters during the transmission of the screencast file, and improve the investment. screen efficiency and effectiveness.

After the client returns a successful IP matching message to the server, the server and client complete the preliminary work of screen projection. The server can send the screencast file to the client, and the client receives the screencast file and displays it.

Step 104, sending the screen projection file to the target client.

In some embodiments, the screen projection file includes any suitable file such as video or picture, and when the server needs to project a picture on the client side, it sends a picture stream to the client. When the server needs to project video on the client, it sends a video stream to the client.

In some implementations, after step 102, the screen projection method may further include: saving the device identification of the client, so that the server can easily obtain the device identification of the client when needed.

The screen projection method provided by the embodiment of the present disclosure includes: sending a search file to search for a client; the search file includes a device identifier of the server and configuration parameters of the server, and the configuration parameters of the server include parameters for selecting a target client; Search response message; the search response message includes the client's device identification and device parameters; the target client that meets the screen projection conditions is determined according to the search response message; the screen projection file is sent to the target client, and the server sends the device identification and configuration parameters during the search phase. It is transmitted to the client, and the target client to be projected can be selected through the configuration parameters, that is, only the selected client can accept the projection, which realizes the differentiated configuration parameters. Moreover, the transmission parameters are pre-decoded in the search stage, and no need The transmission parameters are parsed during the video file transmission process, which improves the screen projection stability and user experience.

In a second aspect, an embodiment of the present disclosure provides a screen projection method, which is applied to a client, that is, an end that accepts projection. FIG. 2 is a flowchart of a screen projection method provided by an embodiment of the present disclosure. As shown in FIG. 2 , the screen projection method includes the following steps 201 to 204 .

Step 201: Receive the search file sent by the server.

The search file may include the device ID of the server and the configuration parameters of the server. The device ID of the server may be randomly generated, and the configuration parameters of the server may include parameters for selecting the target client, that is, the server may select the target client according to the configuration parameters.

In some embodiments, in order to realize the connection between the server and the client, each can generate a device identifier ip, and transmit the device identifier to the other party in the search phase.

In some embodiments, a client list may be generated through configuration parameters of the client, the client list may be a list arranged in a preset priority order, and the client list includes at least one client, such as the priority of area A is high, the priority of area B is medium, and the priority of area C is low. In some embodiments, the target client is selected from the client list according to the configuration parameters of the server, and the client with lower priority is shielded to achieve a differentiated configuration effect and reduce subsequent network resource occupation.

In some embodiments, the configuration parameters of the server may include one or more parameters of system version, screen size and resolution, and the server sends its own system version, screen size or projection resolution to the ip search stage. Client, the client can determine whether to support the screen projection request of the server according to the system version, and can adjust the screen size and resolution of the client display device according to the screen size and resolution. The system version refers to the version of the operating system, for example, in the case of a mobile phone, the system version may be various versions of the Android system.

It should be noted that the search file may include the device identification and configuration parameters of the server. The device identification is the unique identification of the device corresponding to the server, and the client can determine the server according to the device identification of the server. The configuration parameters include at least one of screen size, resolution, system version, and regional characteristics.

In some implementations, the server sends the search file to the client in the search ip stage. Since the server sets configuration parameters, only the client designated by the server can receive the search file. When the client receives the search file in the ip search stage, it establishes a connection with the server, and at the same time, it can agree on the communication method, that is, to realize the mutual transfer of terminal parameters in the ip search stage, which effectively solves and avoids the interaction between the differentiated terminal screens. The display problem of the vote.

Step 202, generating a search response message based on the search file.

The search response message includes the client's device identification and the client's device parameters. The device ID of the client is a unique ID used to represent the client.

In some embodiments, after listening to the search file sent by the server, the client identifies the device identifier and configuration parameters of the server, determines whether its own device supports display, and returns a search response message.

In some implementations, after the client receives the search file sent by the server, it determines whether its own device supports the display of the screen-casting file. The server returns a message that IP matching failed. In some embodiments, the client can determine whether its own device supports the display of the screencast file according to the configuration parameters of the server.

Step 203, returning a search response message to the server.

In some embodiments, the search response message returned to the server includes a successful matching message or a matching unsuccessful message. When the search response message is a successful matching message, the client corresponding to the search response message is eligible for screen projection. target client. When the search response message is a message that fails to match, the client corresponding to the search response message is a client that does not meet the screen casting conditions.

After returning a message indicating that the ip match is successful to the server, the server and the client complete the preliminary work of screen projection. The server can send the screencast file to the client, and the client receives the screencast file and displays it.

Step 204: Receive the screen projection file sent by the server.

In some implementations, the screen projection file includes a video or a picture, and when the server needs to project a picture on the client side, it sends a picture stream to the client. When the server needs to project video files on the client, it sends a video stream to the client.

In some embodiments, after receiving the screen projection file, the client uses a display device to display the screen projection file.

In a third aspect, a screen projection device is provided, which is applied to a server. FIG. 3 is a schematic block diagram of a screen projection device provided by an embodiment of the present disclosure. As shown in FIG. 3 , the screen projection device includes a server sending module 301 , a server receiving module 302 and a server determining module 303 .

The server-side sending module 301 is configured to send a search file to search clients.

In some embodiments, the search file is a file generated by a server-side generating module. The search file includes the randomly generated device identification and configuration parameters of the server, and the configuration parameters are used to select target clients that meet the conditions. Of course, in other implementations, the device identifier of the server can be generated according to a preset rule.

The configuration parameters of the server may include one or more parameters of screen size, resolution, system version, regional characteristics and device type. For the functions of the screen size, resolution, system version, regional characteristics and device type, reference may be made to the description of step 101, which will not be repeated here.

The server receiving module 302 is configured to receive the search response message returned by the client.

The search response message may include the client's device identification and device parameters. The device identifier is the unique identifier of the device used by the client, and the device parameter includes at least one of screen resolution, screen size, and system version.

In some embodiments, after receiving the search file sent by the server, the client identifies the device identifier and configuration parameters of the server, determines whether its own device supports display, and then returns a search response message.

In some embodiments, after the client receives the search file sent by the server, it determines whether its own device supports the display of the screencast file. Returns an IP matching failure message to the server. In some embodiments, the client can determine whether its own device supports the display of the screencast file according to the configuration parameters of the server.

The server determination module 303 is configured to determine the client that meets the screen projection condition according to the search response message.

In some embodiments, the search response message returned by the client includes a successful matching message and a matching unsuccessful message. When the search response message is a successful matching message, it is determined that the client corresponding to the search response message meets the screen casting conditions. target client. When the search response message is a message that fails to match, it is determined that the client corresponding to the search response message is a client that does not meet the screen casting conditions.

In some embodiments, the server-side sending module 301 is further configured to send a screen-casting file to a target client that satisfies the screen-casting condition.

The screen projection file may include a video or a picture. Correspondingly, the server sending module 301 sends a video stream or a picture stream to the client.

In some embodiments, the screen projection device further includes: a list generation module configured to generate a client list according to configuration parameters of the client; the client list is a list arranged according to the priority of the clients.

In some embodiments, the screen projection apparatus further includes: a storage module configured to store the device identifier of the client.

In some embodiments, the screen projection device further includes a communication determination module configured to determine the communication mode according to the configuration parameters and the device parameters returned by the client.

In the screen projection device provided by the embodiment of the present disclosure, the server sending module sends a search file to search for the client; the search file includes the device identifier of the server and the configuration parameters of the server, and the configuration parameters of the server may include parameters for selecting the target client; The server receiving module receives the search response message returned by the client; the search response message includes the device identifier and device parameters of the client; the server determination module determines the target client that meets the screen projection conditions according to the search response message; the server sends the module to the target client. The client decides to send the screencast file, and the server transmits the device identification and configuration parameters to the client during the search phase. Through the configuration parameters, the target client to be casted can be selected, that is, only the selected client can accept the screencast, which realizes Differentiated configuration parameters, and the transmission parameters are pre-decoded in the search stage, and there is no need to parse the transmission parameters during the video file transmission process, which improves the screen projection stability and user experience.

In a fourth aspect, a screen projection device is provided, which is applied to a client. FIG. 4 is a schematic block diagram of a screen projection device provided by an embodiment of the present disclosure. As shown in FIG. 4 , the screen projection device includes a client receiving module 401 , a search response generating module 402 and a client sending module 403 .

The client receiving module 401 is configured to monitor the search file sent by the server.

The search file may include a randomly generated device identifier of the server and configuration parameters of the server, and the configuration parameters of the server are used to select a client that meets the conditions.

In some implementations, in order to realize the connection between the server and the client, each needs to generate a device identifier ip, and transmit the device identifier to each other in the search phase.

The search response generating module 402 is configured to generate a search response message based on the search file when the search file is monitored.

The search response message includes the client's device identification and the client's device parameters.

In some embodiments, after receiving the search file sent by the server, the client identifies the device identifier and configuration parameters of the server, determines whether its own device supports display, and returns a search response message.

In some embodiments, after the client receives the search file sent by the server, it determines whether its own device supports the display of the screencast file, and if it supports the display, it returns a message indicating that the ip match is successful to the server; if it does not support the display, then Returns a message that IP matching failed to the server.

The client sending module 403 is configured to return a search response message to the server.

The client receiving module 401 is further configured to receive the screen projection file sent by the server.

In some embodiments, the screen projection file includes a video or a picture, and when the server needs to project a picture on the client side, it sends a picture stream to the client. When the server needs to project video on the client, it sends a video stream to the client.

In some embodiments, the screen projection device may further include: a display module configured to display the screen projection file on the client.

In the screen projection device provided by the embodiment of the present disclosure, the client receiving module is configured to receive a search file sent by the server; the search file includes a randomly generated device identifier and configuration parameters of the server, and the configuration parameters may include parameters for selecting a target client ; The client sending module is configured to return a search response message to the server; the search response message includes the client's device identification and device parameters, and the server transmits the device identification and configuration parameters to the client during the search phase. The target client of the screen projection, that is, only the selected client can accept the screen projection, which realizes the differentiated configuration parameters. Moreover, the transmission parameters are pre-decoded in the search stage, and there is no need to parse the transmission parameters during the video file transmission process. The stability and user experience of the projection screen are improved.

In order to better understand the screen projection method and the screen projection device provided by the above embodiments, the screen projection method and the screen projection device are further described below. As shown in FIG. 5 , in order to realize screen projection, the server and the client perform the following steps 501 to 504 .

Step 501, the server sends the search file to the client.

The server sends a search file to the client to search for clients that accept screencasting. The search file includes the randomly generated device identification and configuration parameters of the server, and the configuration parameters may include parameters for selecting a target client.

Step 502, the client returns a search response to the server.

The client returns a search response message to the server; the search response message includes the client's device identification and device parameters.

Step 503, the server saves the device identifier of the client.

Step 504, the server sends the screen projection file to the client.

The server sends a screen projection file to the client that meets the requirements, and the screen projection file includes video or pictures. When the server needs to project a picture on the client, it sends a picture stream to the client. When the server needs to project video on the client, it sends a video stream to the client.

After the server and the client establish a connection, the server and the client can exchange data and perform screen projection. If the screen size of the server is not sent to the client during the search ip phase, then during data interaction, the client can send a request to the server to obtain the screen size, and the server sends the actual screen size to the client based on the request. After that, transfer the screen projection data.

In some implementations, the screencast file can be an image or a video. The server can use the Android Debug Bridge (ADB) command to capture the image or obtain the image through the ImageReader of the Android system, and then transmit the image through the network. The video stream can be obtained by obtaining the screen stream through the operating system, and then transmitted after H264 encoding, which can make the screen display smoother. In the operating system, the system agent has a MediaCodec class and a VirtualDisplay class that can read the screen stream and convert it into an H264 encoded video stream.

In some implementations, the server receives the image data information sent by the client through a socket (Socket), decompresses it and displays it on the user interface (UI), and when the user clicks on the UI, the coordinates of the clicked position can be obtained by scaling The conversion is converted into actual coordinates, and then the corresponding command is executed through ADB, and then the change of the image is transmitted to the client through Socket in real time.

For the PC side, you can also read the H264 encoded video stream of the Android agent, and then use the FFMPEG library to decode it.

The web application first obtains the H264 encoded video stream of the Android agent through socket on node.js, then transmits the byte array to WebRtc in real time through WebSocket, displays it through the video tag of WebRtc, and then obtains the coordinate event of the mouse click through js. The subsequent operations are very similar to those of the PC. They all get the command and execute it, and then the AndroidClient casts the screen image, and so on.

It should be noted that the modules involved in the embodiments of the present disclosure are all logical modules, and in practical applications, a logical module/unit may pass through a physical unit, a part of a physical unit, or a combination of multiple physical units. Combination implementation. In addition, in order to highlight the innovative part of the present disclosure, the embodiments of the present disclosure do not introduce units that are not very closely related to solving the technical problems raised by the present disclosure, but this does not mean that there are no other units in the embodiments of the present disclosure. .

In a fifth aspect, referring to FIG. 6 , an embodiment of the present disclosure provides an electronic device, which includes:

one or more processors 601;

The memory 602, on which one or more computer programs are stored, when the one or more computer programs are executed by the one or more processors 601, causes the one or more processors 601 to implement any one of the above the item's projection method; and

One or more I/O interfaces 603 are connected between the processor 601 and the memory 602 , and are configured to implement information interaction between the processor 601 and the memory 602 .

The processor 601 is a device with data processing capability, which includes but is not limited to a central processing unit (CPU), etc.; the memory 602 is a device with data storage capability, which includes but is not limited to random access memory (RAM, more specifically SDRAM) , DDR, etc.), read-only memory (ROM), electrified erasable programmable read-only memory (EEPROM), flash memory (FLASH); I/O interface (read-write interface) 603 is connected between the processor 601 and the memory 602, and can The information interaction between the processor 601 and the memory 602 is realized, which includes but is not limited to a data bus (Bus) and the like.

In some implementations, the processor 601, memory 602, and I/O interface 603 are interconnected by a bus and, in turn, connected to other components of the computing device.

In a sixth aspect, an embodiment of the present disclosure provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, implements any one of the above screen projection methods.

Those of ordinary skill in the art can understand that all or some of the steps in the methods disclosed above, functional modules/units in the systems, and devices can be implemented as software, firmware, hardware, and appropriate combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be composed of several physical components Components execute cooperatively. Some or all physical components may be implemented as software executed by a processor such as a central processing unit, digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit circuit. Such software may be distributed on computer-readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). As is known to those of ordinary skill in the art, the term computer storage media includes both volatile and nonvolatile implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data flexible, removable and non-removable media. Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cartridges, magnetic tape, magnetic disk storage or other magnetic storage, or available with Any other medium that stores the desired information and can be accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and can include any information delivery media, as is well known to those of ordinary skill in the art .

Example embodiments have been disclosed herein, and although specific terms are employed, they are used and should only be construed in a general descriptive sense and not for purposes of limitation. In some instances, it will be apparent to those skilled in the art that features, characteristics and/or elements described in connection with a particular embodiment may be used alone or in combination with features, characteristics described in connection with other embodiments unless expressly stated otherwise and/or components used in combination. Accordingly, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the present disclosure as set forth in the appended claims.

Claims

A screen projection method, including:

Send a search file to search for a client; wherein, the search file includes the device identifier of the server and the configuration parameter of the server, and the configuration parameter of the server includes the parameter for selecting the target client;

Receive a search response message returned by the client; wherein, the search response message includes the device identifier and device parameters of the client;

Determine a target client that satisfies the screen projection condition according to the search response message; and

Send the screen projection file to the target client.
The method according to claim 1, wherein the determining, according to the search response message, a target client that satisfies the screen projection condition comprises:

generating a client list according to the device parameters and device identifiers of the client; wherein, the client list includes at least one client arranged in a preset priority order; and

The target client is determined from the client list according to the configuration parameters of the server.
The method of claim 1, further comprising:

After receiving the search response message returned by the client, determine the communication mode according to the configuration parameters of the server and the device parameters returned by the client, so that the server and the client can communicate according to the communication mode .
The method according to claim 1, wherein the determining, according to the search response message, the target client that satisfies the screen projection condition comprises:

When the search response message is a successfully matched message, it is determined that the client corresponding to the search response message is a target client that satisfies the screen projection condition.
The method according to any one of claims 1 to 4, wherein the configuration parameters include one or more of the following parameters: screen size, resolution, system version, regional characteristics.
A screen projection method, including:

Monitor the search file sent by the server; wherein, the search file includes the device identifier of the server and the configuration parameters of the server, and the configuration parameters of the server include parameters for selecting the target client;

When the search file is monitored, a search response message is generated based on the search file and returned to the server, wherein the search response message includes the device identification and device parameters of the client; and

Receive the screen projection file sent by the server.
The method according to claim 6, wherein the configuration parameters include one or more of the following parameters: screen size, screen projection resolution, system version, and regional characteristics.
The method according to claim 6, wherein the generating and returning a search response message to the server based on the search file comprises:

It is judged based on the search file whether the client supports display, and when the display is not supported, a response message of matching failure is returned to the server; or when display is supported, a response message of successful matching is returned to the server.
A screen projection device, comprising:

The server sending module is configured to send a search file to search for the client; wherein, the search file includes a randomly generated device identifier of the server and a configuration parameter of the server, and the configuration parameter of the server includes a configuration parameter for selecting a target client. parameter;

a server-side receiving module, configured to receive a search response message returned by the client; wherein the search response message includes a device identifier and device parameters of the client; and

a server determination module, configured to determine a target client that satisfies the screen projection condition according to the search response message;

Wherein, the server sending module is further configured to send the screen projection file to the target client.
A screen projection device, comprising:

A client receiving module, configured to receive a search file sent by a server; wherein, the search file includes a randomly generated device identifier of the server and a configuration parameter of the server, and the configuration parameter of the server includes a parameter for selecting a target client;

a search response generation module, configured to generate a search response message based on the search file when the search file is monitored, wherein the search response message includes the device identification and device parameters of the client; and

a client sending module, configured to return a search response message to the server;

Wherein, the client receiving module is further configured to receive the screen projection file sent by the server.
An electronic device comprising:

one or more processors;

a memory having stored thereon one or more computer programs which, when executed by the one or more processors, cause the one or more processors to implement the one or more processors according to claims 1 to 8 The method of any one of; and

One or more I/O interfaces, connected between the processor and the memory, are configured to realize the information interaction between the processor and the memory.
A computer-readable storage medium having a computer program stored thereon, the computer program implementing the method according to any one of claims 1 to 8 when executed by a processor.